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Finding the Fourth Proportional to 587.55, 881.12 and 279.56

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Solution

The fourth proportional to 587.55, 881.12 and 279.56 is: 419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.55 : 881.12 = 279.56 : x
  2. Step 2: Convert to fraction form
    587.55/881.12 = 279.56/x
  3. Step 3: Cross multiply
    587.55x = 881.12 × 279.56
  4. Step 4: Simplify right side
    587.55x = 246,320.10
  5. Step 5: Solve for x
    x = 246,320.10/587.55
  6. Step 6: Final answer
    x = 419.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.